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WEBThe Scientist Staff | 2 min read. In this webinar, scientists will discuss the advantages of assembloid models and the fundamentals of imaging 3D neuronal architecture. Page 1 of 985. Your guide to the most essential developments in life sciences.
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WEBScientists Unearth the Oldest DNA Ever Found. Katherine Irving | Sep 27, 2024 | 3 min read. The 2.4-million-year-old environmental DNA fragments collected from permafrost in northern Greenland unlock insights into an ancient ecosystem.
The Cre- loxP System: A Powerful Tool in the Genetic Toolbox
WEBDec 4, 2023 · Sternberg pondered about the underlying mechanism; he suspected that there must be a genetic hotspot for recombination located at the terminal ends of the linear genome to facilitate plasmid cyclization. 1 . The genesis of Cre-loxP recombinationConsistent with his hypothesis, Sternberg’s experiments revealed a small fragment of P1 DNA at the end of the genetic map that was likely responsible ...
Words for Nerds - Science Wordle Game - The Scientist Magazine®
WEBWelcome to Words for Nerds, our popular and addictive daily science word game. Think of it as science Wordle—a guessing jumble for every nerd, especially the busy life scientist looking to get a little break from the rigors of research. You have six chances to guess either a five-letter or six-letter (see “Hard Mode” under the settings ...
Insights into qPCR: Protocol, Detection Methods, and Analysis
WEBNov 8, 2023 · qPCR, also known as real-time PCR, is an extension of traditional PCR, where DNA amplification over time is quantitated by measuring fluorescence from dyes intercalating into nascent DNA strands or by cleavage of target-specific probes. Therefore, the method combines detection with amplification, providing researchers with …
What Does a Positive Covid Test Look Like? - The Scientist …
WEBMay 10, 2024 · ABOVE: A positive rapid test will yield two visible lines (middle) while a valid negative test will only show a single line in the control region (right) and an invalid test will show no control line (left). iStock, ASIFE V iral TikTok videos showing teenagers hacking rapid COVID-19 tests by inserting sodas and other acidic solutions into the tests’ inlet caused quite a stir in 2021 ...
Universe 25 Experiment | TS Digest | The Scientist
WEBMay 28, 2024 · John B. Calhoun led the Universe 25 experiment, which examined the long-term effects of increasing population density and resulting social stressors on mice living in a constructed environment. 2. How many times was the Universe 25 experiment repeated? Universe 25 was one long-term experiment in a series of mouse studies.
How Many Genes Do Humans Have? | TS Digest | The Scientist
WEBApr 1, 2024 · In 2004, Human Genome Project researchers published the full and estimated that the human genome contained between 20,000-25,000 genes. Scientists now estimate that the number of protein-coding genes is but that number still fluctuates because the definition of a gene is up to interpretation. A gene is …
Hybrid Animals Are Not Nature’s Misfits - The Scientist Magazine®
WEBMay 1, 2021 · At some point in the past, black-tailed jackrabbits (Lepus californicus) and snowshoe hares (L. americanus) crossbred, with the hybrids mating again with snowshoe hares.A combination of whole-genome and whole-exome sequencing revealed that the resultant hares retained a variation of the Agouti gene that led to brown, rather than white, coat color in hare populations experiencing mild, less ...
Can Plants See? In the Wake of a Controversial Study, the Answer’s ...
WEBNov 30, 2022 · ABOVE: The Boquila trifoliolata leaf on the left is how the leaves appear when the vine grows alone; the leaf on the right is purportedly mimicking a plastic leaf. Felipe Yamashita . T he vine Boquila trifoliolata is a shapeshifter. As it winds its way up trees and other flora in the Chilean rainforest, its leaves change to resemble those of the plants it uses for support or, sometimes ...